Engine-manifold



H. J. CHILTON.

ENGINE MANIFOLD.

APPLICATION FILED MAR. 4. 1915.

1,330,580. 7 Patented Feb. 10, 1920.

- UNITED STATES PATENT OFFICE. Bunny .1. cnIL'ron, or cnrcaeo, ILLINOIS, ASSIGNOR, BY missus ASSIGNMENTS," '1 manna-r n. LArrEnrY, osoaxmmn, canrromwm, I

' ENGINE-MANIFOLD.

To all whom it may concern:

Beit known that I, HENRY J. CHILTON, a

citizen of the, United States, residing in the.

useful Im rovements in Engine-Manifolds,

- of which t e following is a specification.

This invention relates to engine mani-. folds, and more particularly to a construction adapted for internal combustion engines, though in its broader aspects the in.- vention is not limited to such use.

The salient objects of the invention are to provide a construction whereby a single manifold can used for conducting both the inlet and exhaust gases; to so construct the engine and the manifold that the inlet.

and exhaust chambers are divided by a single partition wall, the surfaces of the dividlng wall being free from any obstruction that would deter the passage of the gases to "'orfrom the engine; to provide a construction whereby the inlet and exhaust assages I and the dividing wall canbe forme from .a single casting; to rovide an improved construction of com ined inlet and exhaust of the manifold.

manifold whereby thein'coming gases will be heated by the exhaust gases, but danger of overheating avoided; and in general .to

provide an improved construction of com-' bined inlet and exhaust manifold which can be cheaply manufactured and readily ap:

plied to various struction.

In the drawings Figure 1 is a cross-section through one of the cylinders and the manifold;

Fig. 2 is a side elevation of the in'nerv side engines of standard con- Referring to the particular embodiment of my invention shown in thedrawings 1 designates a cylinder of a multi-cylin er rious cylin ers and the exhaust gases led awa therefrom. In gas engines such as are amp 0 ed in automobiles, it is often desirable t at the incomin ases be preheated, and for this pur ose t e eat of the exhaust gases 1s util1ze It is, however, inadvisable to heat the incominggases to too high I a temperature, and th prtsent construction contemplates an arrangement which will not overheat the incoming gasesand in which the construction is greatly simplified.

Specification of Letters Patent.

Eatented Feb. 10, 1920.

Application filed March 4, 1515. Ser1alNo.'1I,984.

as shown in the drawings in Fig. 1, the manifold 2 is divided by the partition 3 into two compartments 4 and 5, these compartments being arranged in different horizont'al planes and formii igginlet and exhaust passages respectively. e particular construction shown is an engine of the vertical the cylinder, and each serve to conduct the gases to and from a plurallty of ports. Thus the exhaust passage 5 hasa pluralit of openings 6 each of which connects wit an opening 7 in the outer! end of the exhaust passage 9. In a similarly arranged manner the inlet passage 4 has 'a plurallty'of openings 10 each of which connects with an outer end 11 of the inlet passage 12 formed in, the cylinder wall.

In both puppet and rotary valve constructions, it is often desirable to have the inner ends of the exhaust and inlet orts opening in the same plane. Thus ass own in Fig. 1 the port 13 of the valve 14 can be used to control both the inlet and exhaust from the cylinder 15, the valve 14 being 85 ilethe inner ends of the inlet and exhaust passages 12 and 9' open in the same plane, it is necessary that their outer ends terminate in different planes in order to bring them in-registration w1th-the'respec-- I tive passages 4 and 5. This I have accomplished by curving or offsetting the pamage' e the passages without being baflled against 105 each other, and danger of overheating the incoming gases is avoided. I have further guarded against such overheatin by providing the outside of the manifo d with a series of fins 19. Whilethe latter are shown 110 above and below the dividing 'as transversel arranged, it is obvious that longitudinal ns could be employed if desired. I

The construction is such that the entire manifold including the inlet conduit 20 and the exhaust conduit 21 can be cast as a unitary structure. Moreover, there are no complicated parts, and by curving the inlet and exhaust conduits 9 and 11 in the manner shown in Fig. 1, it is possible to use the construction with an engine designed to have the inner end of its inlet and exhaust passages lying in the same horizontal plane. While I have shown and described but one form of obtaining the outer ends of the inlet and exhaust passages in different planes, it is obvious that varlous changes in construction and arrangement of arts can be made without departing from t e scope of my invention, and I do not desire to limit the latter except as specified in the appended claim.

I claim as my invention:

In engine construction, the combination with a cylinder having inlet and exhaust passages leading through the cylinder walls, the inner ends of said passages lying in the same horizontal plane and the outer ends of said passages lying in different horizontal planes of a manifold having ports connecting with the outer ends of sald passages and a dividing wall positioned above the outer end of one of said passages and below the outer end of the other of said passages, for conducting the inlet and exhaust gases adj acent but out of contact with each other.

e HENRY J. CHILTON. Witnesses:

J OYCE M. Lo'rz,

C. B. BELKNAP. 

